Download This PaperContinuous-Time Mean Field Games with Finite State Space and Common Noise
34 Pages Posted: 2 Oct 2019 Last revised: 15 May 2020
Date Written: September 23, 2019
Abstract
We formulate and analyze a mathematical framework for continuous-time mean field games with finitely many states and common noise. The key insight is that we can circumvent the master equation and reduce the mean field equilibrium to a system of forward-backward systems of (random) ordinary differential equations by conditioning on common noise events. In the absence of common noise, our setup reduces to that of Gomes, Mohr and Souza (2013) and Cecchin and Fischer (2020).
Keywords: mean field games, common noise, Markov chains, regime shifts
JEL Classification: C61, C73
Suggested Citation: Suggested Citation
Belak, Christoph and Hoffmann, Daniel and Seifried, Frank Thomas, Continuous-Time Mean Field Games with Finite State Space and Common Noise (September 23, 2019). Available at SSRN: https://ssrn.com/abstract=3458336 or http://dx.doi.org/10.2139/ssrn.3458336
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